Initial Commit

Assets/Scripts/Util/Vector2Extension .cs

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+using UnityEngine;
+
+namespace DefaultNamespace
+{
+	public static class Vector2Extension
+	{
+		public static Vector2 Rotate(this Vector2 v, float degrees)
+		{
+			var sin = Mathf.Sin(degrees * Mathf.Deg2Rad);
+			var cos = Mathf.Cos(degrees * Mathf.Deg2Rad);
+
+			var tx = v.x;
+			var ty = v.y;
+			v.x = cos * tx - sin * ty;
+			v.y = sin * tx + cos * ty;
+			return v;
+		}
+
+		public static bool InRange(this Vector2Int pos, Vector2Int size)
+		{
+			return pos.x >= 0 && pos.x < size.x && pos.y >= 0 && pos.y < size.y;
+		}
+
+		public static Vector2Int Translate(this Vector2Int pos, int x, int y)
+		{
+			return new Vector2Int(pos.x + x, pos.y + y);
+		}
+
+		public static Vector2Int To2DIndex(this int value, int width)
+		{
+			return new Vector2Int(value % width, Mathf.FloorToInt(value / (float)width));
+		}
+
+		public static int ToIndex(this Vector2Int value, int width)
+		{
+			return value.y * width + value.x;
+		}
+	}
+}